Vacuum FTIR spectrometer with imaging FTIR microscope

带成像 FTIR 显微镜的真空 FTIR 光谱仪

• 批准号: 448298270
• 金额: --
• 依托单位: Universität Leipzig
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2020
• 资助国家: 德国
• 起止时间: 2019-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/448298270?language=en
• 关键词: Vacuum; FTIR; spectrometer; imaging; microscope

A modern Fourier transform infrared (FTIR) spectrometer with an imaging FTIR microscope is requested, which can be used for the rapid and quantitative analysis of substances and mixtures of compounds, for the elucidation of structures and bonding situations, for the identification of unknown molecular compounds and solids, and for kinetic studies. The required measurement methods include transmission, attenuated total reflection (ATR), directional reflection, diffuse reflection, and FTIR microscopy, which enable reliable and fast analysis of solid and liquid samples without prior sample preparation, as well as the analysis of surfaces and thin layer structures with lateral resolution up to 10-25 x10-6m. or several research groups at the faculty of chemistry and mineralogy, FTIR spectroscopic investigations of classic and organometallic coordination compounds are the subject of current investigations. There is an increasing need for FTIR spectroscopic and microscopic examinations in the MIR and FIR wavelength ranges. This also includes measurements under vacuum conditions (avoidance of disturbances by water vapor, CO2, atmospheric oxygen), measurements over a larger wavelength range (i.e. FIR range 350-80 cm-1) and the advanced sampling technology (examination of surfaces, thin films and layers (fibers in hydrogels) by grazing reflection on the microscope and vacuum spectrometer). The integration of a helium cryostat in the vacuum spectrometer allows samples to be cooled down to a few Kelvins (approx. 4-300 K), which are required to investigate the thermodynamics of weak host-guest or gas-solid-state interactions on porous molecular compounds. The spectrometer configuration requested here extends the analysis techniques available at the Institute of Inorganic Chemistry considerably. This applies in particular to surface analysis and analysis of small samples using FTIR microscopy and FTIR spectroscopy over a wide temperature range. The spectrometer system requested here therefore offers significantly more options than the existing FTIR equipment and is intended to contribute to the development of new scientific fields. In order to remain scientifically competitive, the provision of these previously non-existent measurement methodologies is urgently required.

需要一种带有成像FTIR显微镜的现代傅里叶变换红外（FTIR）光谱仪，该光谱仪可用于物质和化合物混合物的快速定量分析，用于结构和键合情况的说明，用于未知分子化合物和固体的鉴定，以及动力学研究。所需的测量方法包括透射、衰减全反射（ATR）、定向反射、漫反射和FTIR显微镜，这些方法可以在无需事先准备样品的情况下对固体和液体样品进行可靠、快速的分析，以及对表面和薄层结构进行分析，横向分辨率高达10-25 x10- 6 m。或在化学和矿物学学院的几个研究小组，经典和有机金属配位化合物的FTIR光谱研究是当前研究的主题。对中红外和远红外波长范围内的FTIR光谱和显微镜检查的需求日益增加。这也包括在真空条件下的测量（避免水蒸气、CO2、大气氧的干扰）、在更大的波长范围内的测量（即FIR范围350-80 cm-1）和先进的取样技术（通过显微镜和真空光谱仪上的掠射反射检查表面、薄膜和层（水凝胶中的纤维））。真空光谱仪中集成了氦低温恒温器，可将样品冷却至几个开尔文（约10 K）。4-300 K），这是研究多孔分子化合物上弱主客体或气固相互作用热力学所必需的。这里要求的光谱仪配置大大扩展了无机化学研究所的分析技术。这特别适用于在宽温度范围内使用FTIR显微镜和FTIR光谱进行表面分析和小样品分析。因此，这里要求的光谱仪系统提供了比现有FTIR设备更多的选择，旨在为新科学领域的发展做出贡献。为了保持科学竞争力，迫切需要提供这些以前不存在的测量方法。